diff --git a/Pipfile b/Pipfile
index b25b76589174b23a27f6721516ff6c15ed1e933e..5641e3199bef15088b4331821fda74960c809424 100644
--- a/Pipfile
+++ b/Pipfile
@@ -8,6 +8,7 @@ flask = "*"
 sqlalchemy = "*"
 cerberus = "*"
 argon2-cffi = "*"
+validators = "*"
 
 [dev-packages]
 
diff --git a/Pipfile.lock b/Pipfile.lock
index 94864488035876e5ba9262788e87592da2701240..4ab19d3eae279d60a11679e4f40c24a040084b5a 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "23ba3a07b72940777356e477ceb4af1aa92774e7516dcec9038e675bdb1af013"
+            "sha256": "065adba51b94acaf075faa3fd3eb0db4bae7ae67762449d731ef1366ce69b056"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -121,6 +121,14 @@
             "markers": "python_version >= '3.7'",
             "version": "==8.1.3"
         },
+        "decorator": {
+            "hashes": [
+                "sha256:637996211036b6385ef91435e4fae22989472f9d571faba8927ba8253acbc330",
+                "sha256:b8c3f85900b9dc423225913c5aace94729fe1fa9763b38939a95226f02d37186"
+            ],
+            "markers": "python_version >= '3.5'",
+            "version": "==5.1.1"
+        },
         "flask": {
             "hashes": [
                 "sha256:315ded2ddf8a6281567edb27393010fe3406188bafbfe65a3339d5787d89e477",
@@ -316,6 +324,13 @@
             "index": "pypi",
             "version": "==1.4.38"
         },
+        "validators": {
+            "hashes": [
+                "sha256:24148ce4e64100a2d5e267233e23e7afeb55316b47d30faae7eb6e7292bc226a"
+            ],
+            "index": "pypi",
+            "version": "==0.20.0"
+        },
         "werkzeug": {
             "hashes": [
                 "sha256:1ce08e8093ed67d638d63879fd1ba3735817f7a80de3674d293f5984f25fb6e6",